cr_bsd_visible
if ((error = cr_bsd_visible(u1, u2)))
if ((error = cr_bsd_visible(cred, proc->p_ucred)))
if ((error = cr_bsd_visible(td->td_ucred, p->p_ucred)))
if ((error = cr_bsd_visible(td->td_ucred, p->p_ucred)))
if (cr_bsd_visible(cred, so->so_cred))
if ((error = cr_bsd_visible(td->td_ucred, p->p_ucred)))
if (cr_bsd_visible(cred, inp->inp_cred))
int cr_bsd_visible(struct ucred *u1, struct ucred *u2);